Hausen

D=163 km
Center: 65°S, 272°E

Count Area: 8633 km^2
Observed Density (@ 1km): 6800 ± 900
Age: 3.5 ± 0.1 (+sec: 3.6)
Stoffler epoch: Late Imbrian
Fit Density (@ 1km): 5800 ± 900
PF fit: good, largest craters slightly below

Age calculation notes:
fit anchored at small D (SM).
good fit - use as is; adding OSs does not change fit, but does produce slightly older age (MRK).

USGS geology: 
All mapped as Eratosthenian crater material.

Wilhelms: 
Eratosthenian

Floor material: 
Best guess is original and looks like melt between small hills. Hard?

Geology Observations: 
Ejecta blanket visible, but not bright in WAC. Moderate sized central peak. Floor is hummocky, with smooth plains between hills. A few secondary clusters/chains observed with small craters One chain with larger craters (up to ~2.3  km).

SFD Observations: 
Dominated by classes 3 & 4 for small diameters (< 1.5 km), by 1 & 2 for larger craters. Matches MPF. Steeper distribution. No shallow "right ear". Slope(Diff)=-4.5 ± 0.3

Also examined by McEwen et al. (1993):
density: 6500
age: 3.6 Ga (?)

Discussion notes: no issues

Last Edited by MRK 12/13/2012